<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link href="static/assets/global/plugins/bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css"/>
    <link href="static/assets/global/css/components.css" rel="stylesheet" type="text/css"/>
    <link href="static/assets/admin/pages/css/login.css" rel="stylesheet" type="text/css"/>
    <script src="static/assets/global/plugins/jquery-1.11.0.min.js" type="text/javascript"></script>
    <script src="gethost.js" type="text/javascript"></script>
</head>
<body class="login">
<div class="content">
    <h3 class="form-title">商品详情</h3>
    <div id="promoStartTimeContainer" class="form-group">
        <label style="color: blue" id="promoStatus" class="control-label"></label>
        <div>
            <label style="color: red" class="control-label" id="promoStartTime"/>
        </div>
    </div>
    <div class="form-group">
        <div>
            <label class="control-label" id="title"/>
        </div>
    </div>

    <div class="form-group">
        <label class="control-label">商品描述</label>
        <div>
            <label class="control-label" id="description"/>
        </div>
    </div>
    <div id="nomalPriceContainer" class="form-group">
        <label class="control-label">价格</label>
        <div>
            <label class="control-label" id="price"/>
        </div>
    </div>
    <div id="promoPriceContainer" class="form-group">
        <label style="color: red" class="control-label">秒杀价格</label>
        <div>
            <label style="color: red" class="control-label" id="promoPrice"/>
        </div>
    </div>
    <div class="form-group">
        <div>
            <img style="width: 200px;height: auto;" id="imgUrl">
        </div>
    </div>
    <div class="form-group">
        <label class="control-label">库存</label>
        <div>
            <label class="control-label" id="stock"/>
        </div>
    </div>
    <div class="form-group">
        <label class="control-label">销量</label>
        <div>
            <label class="control-label" id="sales"/>
        </div>
    </div>

    <div class="form-actions">
        <button class="btn blue" id="createOrder" type="submit">
            下单
        </button>
    </div>

</div>

</body>
<script>

    function getParam(paramName) {
        paramValue = "", isFound = !1;
        if (this.location.search.indexOf("?") == 0 && this.location.search.indexOf("=") > 1) {
            arrSource = unescape(this.location.search).substring(1, this.location.search.length).split("&"), i = 0;
            while (i < arrSource.length && !isFound) arrSource[i].indexOf("=") > 0 && arrSource[i].split("=")[0].toLowerCase() == paramName.toLowerCase() && (paramValue = arrSource[i].split("=")[1], isFound = !0), i++
        }
        return paramValue == "" && (paramValue = null),paramValue
    }
    var g_itemVO={};
    jQuery(document).ready(function () {
        //获取商品详情信息
        $.ajax({
            type:"GET",
            url:"http://"+g_host+"/item/get",
            data:{
                "id":getParam("id")
            },
            xhrFields:{
                withCredentials:true
            },
            success:function (data) {
                if(data.status=="success"){
                    g_itemVO=data.data;
                    reloadDom();
                    setInterval(reloadDom,1000);
                }else{
                    alert("获取信息失败，原因为"+data.data.errMsg);
                }
            },
            error:function (data) {
                alert("获取信息失败，原因为"+data.responseText);
            }
        });

        //下单请求
        $("#createOrder").on("click",function () {
            var token=window.localStorage["token"];
            if(token==null){
                alert("用户未登录，不能下单");
                window.location.href="login.html";
                return false;
            }
            $.ajax({
                type: "POST",
                contentType: "application/x-www-form-urlencoded",
                url: "http://"+g_host+"/order/createOrder?token="+token,
                data: {
                    "itemId": g_itemVO.id,
                    "amount": 1,
                    "promoId":g_itemVO.promoId
                },
                xhrFields: {
                    withCredentials: true
                },
                success: function (data) {
                    if (data.status == "success") {
                        alert("下单成功");
                        window.location.reload();
                    } else {
                        alert("下单失败，原因为" + data.data.errMsg);
                        if (data.data.errCode == 20003) {
                            window.location.href ="login.html";
                        }
                    }
                },
                error: function (data) {
                    alert("下单失败，原因为" + data.responseText);
                }
            });
        });

    });
    function reloadDom(){
        $("#title").text(g_itemVO.title);
        $("#description").text(g_itemVO.description);
        $("#stock").text(g_itemVO.stock);
        $("#price").text(g_itemVO.price);
        $("#imgUrl").attr("src",g_itemVO.imgUrl);
        $("#sales").text(g_itemVO.sales);
        if(g_itemVO.promoStatus==1){
            //秒杀活动还未开始
            var startTimes=g_itemVO.startTime.replace(new RegExp("-","gm"),"/");
            startTimes=(new Date(startTimes)).getTime();
            var nowTime=Date.parse(new Date());
            var delta=(startTimes-nowTime)/1000;

            if(delta<=0){
                //活动开始
                g_itemVO.promoStatus=2;
                reloadDom();

            }
            $("#promoStartTime").text("秒杀活动将于: "+g_itemVO.startTime+"开始! 倒计时:"+delta+"秒");
            $("#promoPrice").text(g_itemVO.promoPrice);
            $("#createOrder").attr("disabled",true);
        }else if(g_itemVO.promoStatus==2){
            //秒杀活动进行中
            $("#promoStartTime").text("秒杀活动正在进行中");
            $("#promoPrice").text(g_itemVO.promoPrice);
            $("#createOrder").attr("disabled",false);
            $("#nomalPriceContainer").hide();
        }
    }
</script>
</html>